Tandem-spring draft-rigging.



'Era

. No. 862,932. PATBNTED AUG-.13, 1907.

. J. F. ocoNNoR.

TANDBM SPRING DRAFT RIGGING.

APPLICATION FILED JUNE 12.1907. 2 SHEETS-SHEET 1.

WITNESSES: IN VEN TOR /1/5 ArroRNEx/s PATENTED AUG. 13, '1907.

J. F. OGONNOR. TANDEM SPRING DRAFTr RIGGING.

A'PPLIOATION FILED JUNE 12. 1907.

2 SHEETS-SHEET 2.

/125 ATTURNEx/s 'i UNITED sragns ra'rnnr essieu.

JOHN F. oooNNoR, OF CHICAGO, ILLINOIS, Assister.. 'ro w. II. MinusQOMPA'NY, or CHICAGO, ILLINOIS, A CORPORATION or ILLINOIS.

TANDEMLSPRING DRAFT-mesme.

. Specification of `Letters Patent.

:Patented Aug. 18, 1907.

Applicationled June 12,1907. Serial No. 378,487.

My invention relates to improvements in tandem spring'drait rigging forrailway cars, and more particularly to the construction of the sideplates or stop castings of the draft-rigging. Q The object of myinvention is to provide a tandem spring draft rigging side,l plate orstop casting of a simple, efficient and durable construction having theneclimit the movement `of the iollowers, which will be comi posed oiamain web of uniform thickness throughout.

l claims.

- side plates or stop castings.

essary main stops. or 4shoulders for the followers to. abut against andalso the required intermediate stops to and substantially free from T orother sections, liable to cause unequal shrinkage or casting strains,which may be perfectly produced in cast metal, and which may be readilyand cheaply manufactured, and'which at the same time will have specialprovision for bracing and strengthening the same longitudinally toprevent buckling.

. My invention consists in the means I employ to practically accomplishthis object or result as herein shown and described, and moreparticularly specied in the In the accompanying drawing forming a part Othis specication, Figure 1 is a 'sideelevation partly in verticalsection of a tandem spring .draft rigging embodying my invention. Fig. 2is a plan view partly in horizon tal section. Fig. 3 is a detail sideelevation ofone of the Fig. 4 is a section on line 4-4 of Fig. 3. Figs.5, 6 and 7 are detail cross sections on lines 5--5, 6-6 and 7.-.7Arespectively of Fig. 4.

In the drawing, A represents the center sills, draft timbers orothei-'longitudinal frame members to which the side plates yor stopcastings of the draft rigging are secured, A1 the front or end sill, Bthe draw-bar, B thel draw-bar yoke, B the. lintermediate abutment blocksecured to `the yoke by rivets b b, C C1 tandem arranged springs, Dthe'side plates or stop castings and E the fol-A lowers'. i

Each of the side plates or stop castings Dis ui'ishedwith main, front,middle end rear Vstops)i1-shoulders.

d dl d2 'd3 for the followers to abut agairis@ andfiruterm'ediate stopsor shoulders d4 d5 d5 d" to limit the` Inova.y :nient of the `followers.andthe Vcompression of the springs, and with an'upper horizontallyextending lon gitudinal integralv guide iiange d8 for' the followers.Enschot' the side plates onstopcastings D are also furnished withintegral depending legs d furnished with flangesor shoulders [11 toreceive the lower removable angle guides F -upon which the -followersreciprocate and which are secured in place by `removable bolts f, havingnuts j1 andkeys f2.

Each of the side plates or stop castings D vconsists Oi a main web 11 ofsubstantially uniform thickness throughout, and substantially free fromT or other thickened sections. This main web l1 is urnishedwithtransverse right angle inwardly proj ectlngbends or convolutions l2therein, having slightly rounded corners to vform the main stops d(i1-d2 d3 and the intermediate stops d4 d5 d5 d7 and a series oioutwardly projecting rightangle bends orconvolutions 13 4forming thehear- Aing members or faces d of the stp casting, which abut 4 againstthe center sill or frame member of the car to which the side plate orstop casting is secured by the bolts du.' And the main web ll oi each ofthe side plates or stop castings D is furnished with a plurality ofangle or V shaped bracing bends 14,15, 16, extending through thelongitudinal middle portion of the stop casting between. the ripper andlower portions of the stop bends, thus dividing each of the stop bendsyinto an upper section or portion F1 and a lower sectionor portion F2.The angle 'or 'V shapedbracing bends 14, 14 which bridge theintermediate stop bends 12, 12 are preferably comparatively obtuse asillustrated in Fig. 4

of the drawing, while the angle or V shapedbracing bend 15 which bridgesthe middle stop bend 12 is preferably considerably more acute, beingabout a right an-` gle as illustrated in the drawing. By`thisnconstruction of the side plate or stop4 'casting D, it is verymuch braced and stiffened against buckling strains, while at the sametime the casting is of a shape that it can be readily withdrawn upwardfrom the casting mold and is composed of vasingleweboi substantiallyvuniform thickness throughout its whole area, as the web has an angleforV shaped longitudinal section at its middle arid a substantially rightangle bend or convolution sectien above and below its middle portion.The main web 11 of fthe side plate or stop casting may also bepreferably furnished with angle or V shaped bracingv bends 17 directlyabove the right angle transverse bends which form the main andintermediate stops, as be readily understood from Fig. 3 of the drawing.

" Yliclaim.:-- l I 1. In a draft rigging for railway eers, thecombination -with 'the draw-bar, draw-bar yoke,l tandem arranged springsand followers, of stopcastlngs for the followers tefabut against,consisting each of a main'web ei'. substam tially uniform thickness,furnished with. transverse 1nwardly projecting right angle bends orconvolutions forming the main andintermediete stops for the follower!losI ' to abut against and provided at its horizontal middle por- 4abutagainst and provided at its horizontal middle portion tion with angle orV shaped bracing webs extending longitudinally between the upper andlower portions of the stop bends, said stop castingsbeing also providedwith integral downwardly projecting lugs furnished with anges to receiveremovable guides, and removable angle guides secured thereto to supportthe followers, substantially as specified.

3. In a draft rigging for railway cars, the combination with thedraw-bar, draw-har yoke, tandem arranged spring-sand followers, ofstopeastings for the followers to abut against, consisting each of amain web of substantially uniform thickness, furnished with transverseinwardly projecting right angle bends or convolutions forming the mainand intermediate stops for the followers to abut against and provided atits horizontal middle portion with angle or V shaped bracing websextending longitudinally between the upper 'and lower portions of thestop bends, each of said stop castings being further provided with angleor V shaped bracing webs extending longitudinally across the stop bendsabove the same, substantially as specified.

4. In a draft rigging for railway cars, the combination with thedraWbar, draw-bar yoke, l tandem arranged springs and followers', ofstop castings for the "followers to abut against, consisting each ofa-main web of substantially uniform thickness, furnished with`transverse inwardly projecting right angle bends or convolutionsforming the main and intermediate stops for the followers to abutagainst and provided at its horizontal middle portion with angle or Vshaped bracing webs extending longi- 4tudinally between the upper;I andlower portions of the stophendS, the main web `of each Vof said stopcastings beingr further provided with outwardly projecting transverseright angle bends to form bea `ing faces ih the stop castings,substantially as specified. V l

5. -A draft rigging'sto'p casting consisting of a maf web ofsubstantially uniform thickness, furnished with integral right angletransverse -bendsor @onvolutions therein to form the stops andprovidedat its longituinal Vmiddle segob.

portion with an angle or V shaped bracing web dividing the stop bendsinto upper and lower portions, substantially as specified.

6. A draft rigging stop casting consisting of a main web ofsubstantially uniform thickness, furnished with integral right angletransverse bends or convolutions therein to form the stops and providednt its'iongitudinal middle portion with :in angle or V shaped bracingweb dividing `thestop bends into upper and lower portions, said anglewebs bridging the middle stop bend and the intermediate stop bends,substantially as specified. j

7. A draft rigging stop casting consisting of a main web ofsubstantially uniform thickness having transverse right,

angle bends therein to form the stops and provided 'at its longitudinalmiddle portion with a V shapedbracing web bridging the intermediatestop, substantially as specified. y

8. A draft rigging stopca/sting consisting of a main web ofsubstantially uniform thickness having transverse right angle bendstherein to form the stops and provided at its longitudinal middlelportion with a V shaped bracing web bridging the middle stop,substantially as specified.

9. A side plate or stop casting, consisting of a main web of,substantially uniform thickness, furnished with in wardly projectingtransverse right anglebends or convolutions to form the stops, andoutwardly projecting right angle transverse bends or convolutions toformbearing faces for the stop casting and provided with angle or Vshaped bracing webs extending along the longitudinal middle portion ofthe stop casting, substantially as speciiied.

10. A side plate or stop casting, consisting of a main web oisnbstantially uniform thickness, furnished with in-v wardly projectingtransverse right angle bends or convolution's to `form the stops, andoutwardly projecting right angle transverse bends or convolntions toform bearing faces for the stop casting and provided with angle or Vshaped bracing webs extending along the longitudinal middle portion ofthe stop casting, and provided with a further angle or V shaped bracingweb above the stop bends, substantially as specified.

11. A draft rigging stop casting consisting of a main web ofsubstantially uniform thickness, having ytransverse right angle bendstherein forming stops, -and provided with a longitudinally extending Vshaped bracing web portion, substantially as specified.

vJOHNv F. o'coNNoR.

Witnesses: Y*

H, M. MUNDAY, EDMUND Ancocn.

